JP2001271530A - Door locking apparatus for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of a door locking apparatus and to downsize the entire of the door locking apparatus which is equipped with a locking/ unlocking function of making door opening operation of an inside handle effective or ineffective. SOLUTION: A shaft portion 24c arranged at one end of a base portion 24a of a switching lever 24 is slidably and rotatably fitted into a guide hole 3b of a base plate 2. Then, a projection 24a formed at the other end of the base portion 24d is connected to an inside lever 19 and an operating lever 21 in a manner being movable in a radially outward direction with respect to a shaft 20, whereby the projection is movable between an unlocked position where it is engageable with an engaging portion 19b formed in the inside lever 19, and a locked position where it is disengaged from the engaging portion 19b. In the unlocked position of the switching lever 24, when the inside lever 19 moves in an opening direction, the projection 24a engages with the engaging portion 19b, and therefore the projection is rotated about a shaft portion 24c, whereby movement of the inside lever 19 in the opening direction is transmitted to the operating lever 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for an automobile having a locking / unlocking function for enabling or disabling a door opening operation of an inside handle provided inside a door.

[0002]

2. Description of the Related Art In a conventional door lock device for an automobile, an inside lever connected to an inside handle provided inside the door and pivotally attached to a base plate, and an upper end portion pivotally attached to the inside lever, Operating lever (connecting lever) that can be moved up and down
A switching lever (child proof lever) pivotally attached to the base plate and supporting the lower end of the operating lever so as to be vertically movable, and movable to an unlocking position and a locking position by appropriate operating means; When the switching lever is in the unlocked position, the operating lever and the open lever are connected, and the door can be opened by operating the inside handle, and when the switching lever is in the locked position, the operating lever and the open lever are opened. There is one in which the connection with the lever is released and the door cannot be opened by the inside handle (for example, see Japanese Patent Application Laid-Open No. 8-333936).

[0003]

However, according to the above-described conventional door lock device, since the inside lever, the operating lever, and the switching lever are provided at separate positions, the connection of each lever is performed. In addition to the complicated parts, the base plate for supporting each lever becomes large, and the whole door lock device becomes large.

The present invention has been made in view of the above-mentioned problems of the prior art, and has been made to reduce the size of the base plate and the overall size of the door lock device, thereby simplifying the structure of the automobile. It is intended to provide a door lock device for a vehicle.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) A base plate fixed to a door, an open lever mounted on the base plate and moved in an open direction to release a meshing state between the door and a vehicle body, and an open lever pivotally attached to the base plate and An inside lever that moves in the opening direction by operating a handle provided on the vehicle interior side; and an open lever that is pivotally attached to the base plate coaxially with the inside lever and is moved in the opening direction by the inside lever. An operating lever for moving the operating lever in the open direction, and a protrusion provided at one end is linked to the inside lever and the operating lever so as to be movable in an eccentric direction with respect to a common axis of the inside lever and the operating lever, The protrusion is one of an inside lever and an operation lever By engaging with the provided engaging portion, an unlocking position for transmitting the movement of the inside lever in the open direction to the operating lever, and the protrusion swinging with respect to the engaging portion, thereby causing the inside lever to swing. It is movable to a locking position that does not transmit the movement in the opening direction to the operating lever, and a shaft provided at the other end is fitted into a guide hole provided in the base plate, and the unlocking position and the locking position are And a switching lever rotatable about the shaft.

(2) In the above item (1), a guide hole is arranged on one side and an engaging portion is arranged on the other side with a common axis of the inside lever and the operation lever as a boundary, and the switching lever is bypassed around the axis. So as to form a substantially C-shape.

(3) In the above item (1) or (2), the switching lever is elastically engaged with an uneven check portion provided on the base plate near the shaft portion of the switching lever, and the switching lever is unlocked. An elastic piece for stably retaining the elastic pressure is provided at the lock position.

(4) In any one of the above items (1) to (3), the shaft of the switching lever is attached to the free end of the output lever of the actuator which is attached to the base plate and can be operated by operating an appropriate operation switch. Pivot the department,
The operation of the actuator enables the switching lever to move between the unlocked position and the locked position.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the following description, the left side in FIG. 1 is referred to as “front” and the right side as “rear”.

(1) A meshing mechanism main body fixed to a side panel of a door with a plurality of bolts (not shown). Inside the main body, a meshing mechanism is fixed to a vehicle body side as the door is opened and closed as a meshing mechanism. A latch (not shown) that can be disengaged from the striker (not shown), and an engaging member (not shown) that engages with the latch to prevent rotation of the latch and restrain the door in the closed state. Are rotatably accommodated.

[0011] (2) is a base plate fixed to the front surface of the engagement mechanism body (1), the mounting piece (2) bent forward.
A guide hole (3) having upper and lower guide holes (3a) (3b) facing rearward is formed in the lower part of (a). An uneven check portion (3c) is provided on the upper inner edge of the upper guide hole (3a).

In FIG. 1, (4) shows a base plate.
An actuator fixed to the mounting piece (2a) of (2), and a first motor rotatable in predetermined forward and reverse directions by operating an operation switch provided near a driver's seat in the housing (4a). (5) and a second motor (6) rotatable in a predetermined forward and reverse direction by operation of another operation switch are housed, and outside the housing (4a), the shafts (4b) and (4c) are held. , Knob lever (7) and output lever (9) are pivotally mounted.

The first motor (5) rotates the knob lever (7) via a sector gear (8) pivotally mounted in the housing (4a). The second motor (6) rotates the output lever (9) via a sector gear (10) pivotally mounted in the housing (4a).

The knob lever (7) has an engaging portion (7a) at the lower end.
With a slit (7b) at the top and an arm (7c) facing backwards
The first motor (5) is rotatable between an unlocked position shown in FIG. 1 and a locked position shown in FIG. 3 by rotation of the first motor (5).

A lower end (11a) of a key lever (11) pivotally attached to an upper portion of the mounting piece (2a) is engaged with the slit (7b). The key lever (11) is linked to a key cylinder (not shown) provided on the vehicle outside of the door, and the knob lever (7) can be moved to a locking position and an unlocking position by operating the key cylinder. Note that the knob lever (7) can be moved to the locking position and the unlocking position by manual operation of a lock knob (not shown) provided inside the door.
It is connected to the lock knob via a cable (not shown).

In FIG. 4, reference numeral 12 denotes a locking / unlocking lever pivotally attached to the base plate 2 with a shaft portion 12a, and a connecting hole 12b formed in the left end thereof has a knob lever.
The arm (7c) of (7) is engaged and the locking / unlocking lever (12)
Can be moved to the unlocked position shown in FIG. 4 and the locked position shown in FIG. 5 in conjunction with the movement of the knob lever (7) to the locked position and the unlocked position.

The elastic piece (12c) provided between the shaft (12a) and the connecting hole (12b) of the locking / unlocking lever (12) is connected to the engaging mechanism main body.
By pressing against the convex check portion (1a) provided in (1), the locking and unlocking lever (12) is stably held at the locking position and the unlocking position.

(13) is an open lever fixed to a shaft (14) of an engaging member projecting from the front surface of the meshing mechanism main body (1).
At the right end, an engaging portion (13a) bent forward is provided, and is rotated in the open direction (clockwise in FIGS. 4 and 5), so that the engaging member, the latch and Can be released to open the door.

(15) The shaft (1) is located below the base plate (2).
5a), is connected via a cable (not shown) to an outside handle (not shown) provided on the outside of the door of the vehicle, and is operated in the opening direction (FIGS. 4 and 5). 5 is rotated counterclockwise).

(16) is a vertically long hole provided on the upper part
(16a) is a protrusion (12) provided at the bottom of the locking / unlocking lever (12).
d) is a first sub-lever which is fitted to the outside lever (15) with a shaft (16b) provided at the lower end thereof so as to be slidable in the up-down direction. Following the movement to the unlocking position and the locking position, it moves to the unlocking position shown in FIG. 4 and the locking position shown in FIG. By moving in the open direction of 15), it moves downward.

(17) is a second sub-lever whose lower end is pivotally connected to the outside lever (15) by a shaft portion (16b) of the first sub-lever (16). A hook-shaped release portion (17a) that can be engaged with the engagement portion (13a) is provided, and a right edge of the release portion (17a) is provided with a contact that can contact the left side surface of the engagement portion (13a). A contact portion (17b) is provided.

As shown in FIGS. 10 and 11, a compression coil spring (18) is accommodated in a curved accommodation portion (16c) provided below the shaft portion (16b) of the first sub-lever (16). Have been. The opening of the storage section (16c) is closed by the second sub-lever (17).

The spring (18) has its right end in contact with the right wall surface of the housing portion (16c) and its left end in contact with the bent piece (17c) of the second sub-lever (17). In FIGS. 4 and 5, it is urged clockwise. The biasing force of the spring (18) is
The force is set to be smaller than the force for retaining the locking / unlocking lever (12) of the elastic piece (12c).

The second sub-lever (17) is usually provided with a stopper (17d) provided on the upper part as shown in FIGS.
Abuts on the first sub-lever (16) and the first sub-lever (16)
Is held at an original position having a predetermined angle with respect to
It is movable to a locking position and an unlocking position together with the first sub-lever (16), and is also movable up and down.

As shown in FIG. 4, when the locking / unlocking lever (12) is at the unlocking position, the first and second sub-lever (16) (17) are moved by moving the outside lever (15) in the opening direction.
Is moved downward, the release portion (17a) of the second sub-lever (17) comes into contact with the engagement portion (13a) of the open lever (13), and the open lever (13) is rotated in the open direction. hand,
You can open the door.

As shown in FIG. 5, the locking / unlocking lever (1
When 2) is in the locked position, the outside lever (15)
Of the first and second sub levers (1
6) Even if (17) moves downward, as shown in FIG.
The door (17a) does not swing with respect to the engaging portion (13a) so that the door cannot be opened.

1 to 3, reference numeral (19) denotes an inside lever pivotally attached to a mounting piece (2a) of a base plate (2) with a horizontal shaft (20), and a rear shaft (20). ), And an engaging portion (19) continuously provided in the eccentric direction with respect to the shaft (20) from the lower end of the oscillating portion (19a).
b) and a cable connection hole (1
9c) is connected to an inside handle (not shown) provided inside the door via a cable (not shown), and is opened in the opening direction (clockwise in FIGS. 1 to 3) by opening the inside handle. It can be rotated.

(21) is pivotally mounted on the mounting piece (2a) with the same shaft (20) as that on which the inside lever (19) is pivoted, and between the inside lever (19) and the outside lever (15). The operating lever provided in the transmission path of
(Clockwise in FIG. 3),
The contact part (1) provided on the left end of the outside lever (15)
5b), the release part (21a) that allows the outside lever (15) to open and move, and the mounting piece (2a)
(22) is brought into contact with the lower part (23a) of the pivotally connected linkage lever (23), and the linkage lever (23) is moved from the position shown in FIG. A long hole (21c) facing eccentrically with respect to the shaft (20) so that the linking part (21b) that can be moved to the position shown and the engaging part (19b) of the inside lever (19) overlap in the left-right direction. And

The linking lever (23) is moved from the position shown in FIG. 1 to the canceling position shown in FIG. 2 by the operating lever (21), so that the arm (23b) facing upward is engaged with the knob lever (7). The knob (7) is brought into contact with the joint (7a) and the knob lever (7) is moved from the locked position to the unlocked position, and the locking and unlocking lever (12) and the first and second sub-lever (16) (17) are moved from the locked position to the unlocked position. Move to

Reference numeral (24) denotes a switching lever formed of a synthetic resin material. The switching lever is sandwiched between the mounting piece (2a) of the base plate (2) and the inside lever (19) so as to be slidable in the front-rear direction. At the rear end of the base (24d) formed in a C shape so as to bypass the lower part of the shaft (20), the idle swing part (19a) and the engagement part (19b) of the inside lever (19) are provided. In addition, a pin-shaped protrusion (24a) is engaged with the operation lever (21) so as to be movable in the front-rear direction substantially in the long hole (21c), and the front end of the base (24d) is provided with As shown in the figure, a tongue-shaped elastic piece (24b) slidably fitted into the check portion (3c) formed on the upper edge of the lower guide hole (3b), and slidably and rotatably fitted therein. Shaft (24
c) is provided. The shaft (24c) is the actuator
It is rotatably connected to the free end of the output lever (9) of (4).

The switching lever (24) is an inside lever (19)
And on the same plane as the operating lever (21), can move in the front-rear direction, and can rotate about the shaft (24c), and as shown in FIG. As shown in FIG. 3, the unlocking position where the engaging portion (19b) is engaged and the locking position where the protruding portion (24a) is located on the idle swing portion (19a) can be moved.
This movement is performed by the rotation of the output lever (9) by the rotation of the motor (6).

The elastic piece (24b) is connected to the check section as described above.
(3c) is pressed into contact with the switching lever
While holding (24) in the unlocked and locked positions,
When in the unlocked position, a gap is formed between the rear edge of the elastic piece (24b) and the rear end of the upper guide hole (3a) so that it can rotate around the shaft (24c). It has become so.

As shown in FIG. 1, when the switching lever (24) is in the unlocking position and the inside lever (19) moves in the open direction, the projection (24a) is engaged as shown in FIG. The inside lever (19) and the operating lever (21) are protruded so that the engaging lever (21b) is engaged with the joint (19b) and the operating lever (21) and the outside lever (15) are moved in the open direction. 24a)
Connected by That is, the inside lever (19)
A transmission path is connected between the outside lever (15) and the outside lever (15).

The switching lever (24) is an inside lever (19).
With this rotation, the elastic piece (24b) rotates in the upper guide hole (3c) while rotating clockwise about the shaft (24c).

As shown in FIG. 3, when the switching lever (24) is in the locked position, even if the inside lever (19) rotates in the open direction, the engaging portion (19b) is engaged with the projection (24a). Swing the inside lever (19) to rotate the operation lever (2
The connection between the inside lever (19) and the operating lever (21) is released so as not to be transmitted to (1). That is, the transmission path between the inside lever (19) and the outside lever (15) is disconnected.

In the above-described embodiment, the idle swing portion
(19a) and the engaging portion (19b) to the operating lever (21),
(21c) is provided on the operating lever (21), but instead of this, the idling portion (19a) and the engaging portion (19b) are connected to the operating lever (21).
Alternatively, a long hole (21c) may be provided in the inside lever (19). In this case, the idle swing portion (19a) is provided continuously below the engagement portion (19b).

Next, the operation of the embodiment of the present invention will be described. (A) (When both the unlocking lever and the switching lever are in the unlocking position) In the state shown in FIG. 4, by operating the outside handle from outside the vehicle, the outside lever (15) and the second sub lever (17) are operated. ), The door can be opened by rotating the open lever (13) in the open direction via the release portion (17a).

In the state shown in FIG. 1, the inside lever is operated by operating the inside handle from inside the vehicle.
(19) The open lever (13) is rotated in the open direction via the release lever (17a) of the switching lever (24), the operating lever (21), the outside lever (15), and the second sub-lever (17). Let's open the door.

(B) (When the unlocking lever is in the locking position and the switching lever is in the unlocking position) In the state shown in FIG. 5, when the outside handle is operated, the second sub-lever (17) is moved to the outside lever. (1
Even if it moves downward through (5), as shown in FIG. 6, the door cannot be opened because the release portion (17a) swings against the engagement portion (13a) of the open lever (13). .

Next, when the inside handle is operated, first, through the inside lever (19), the switching lever (24), the operating lever (21) and the outside lever (15),
The two sub levers (16) and (17) move downward, and as shown in FIG. 6, the releasing portion (17a) is engaged with the engaging portion (13a) of the open lever (13).
Swings to the side of.

At the same time, the link lever (23) is moved to the cancel position in conjunction with the opening movement of the operating lever (21), so that the link lever (23) is moved via the knob lever (7) and the locking / unlocking lever (12). As shown in FIG. 7, the first and second sub levers (16) and (17) are moved from the locked position in the unlocking direction,
The contact part (17b) of the second sub lever (17) is
(13) is brought into contact with the side surface of the engaging portion (13a),
(16) only, the locking / unlocking lever against the biasing force of the spring (18)
Move to the unlocking position together with (12).

In this state, when the operation of the inside handle is released, the outside lever (15) returns to the original position before the movement, and the first and second sub levers (16) and (17) move upward. When the contact portion (17b) of the second sub-lever (17) is disengaged from the engaging portion (13a) of the open lever (13), the second sub-lever (17) is unlocked by the urging force of the spring (18). It is moved to.

Next, when the inside handle is operated again, the locking / unlocking lever (12) is in the unlocked position.
The door can be opened in the same manner as in (A).

That is, the first operation of the inside handle moves the locking / unlocking lever (12) from the locked position to the unlocked position, and the second operation allows the door to be opened. The door can be opened by an action override operation.

(C) (When the unlocking lever is at the unlocking position and the switching lever is at the locking position) In this state, the door is opened by operating the outside handle in the same manner as in (A) above. be able to.

On the other hand, in the operation from the inside handle, even if the inside lever (19) moves open,
Since the idle swing part (19a) swings against the protrusion (24a) of the switching lever (24) and its open movement is not transmitted to the operating lever (21), the door can be opened even if the inside handle is operated. Can not. In this state, it is possible to prevent the door from being opened due to mischief of a child or the like in the vehicle.

(D) (Both the locking and unlocking levers and the switching lever are locked) In this state, even if the outside handle is operated from outside the vehicle, the door cannot be opened in the same manner as in (B) above. Further, even if the inside handle is operated from inside the vehicle, the door cannot be opened in the same manner as in (C).

That is, by setting the switching lever (24) to the locked position, the double action / override operation is disabled, and the door cannot be opened by the inside handle. Therefore, it is impossible to open the door by operating the inside handle from outside the vehicle due to cheating.

[0049]

According to the present invention, the following effects can be obtained. (a) According to the invention described in claim 1, an inside lever,
Since the operating lever and the switching lever can be concentrated in one place, the arrangement space can be reduced, and the base plate supporting each lever can be reduced in size, and the door lock device as a whole can be reduced in size. Can be.
Further, the switching lever has no slot or the like at all, and can be rotated together with the inside lever and the operating lever, so that the switching lever can be downsized.
In addition, the configuration can be simplified.

(B) According to the second aspect of the present invention, the switching lever can be effectively disposed in a small space, and can smoothly rotate together with the inside lever and the operating lever.

(C) According to the third aspect of the present invention, the switching lever can be reliably held in the unlocked position and the locked position with a simple configuration and reliably.

(D) According to the fourth aspect of the invention, the actuator can be easily connected to the switching lever.
Further, the switching lever can be moved to the unlocking position and the locking position by remote control.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a door lock device of the present invention.

FIG. 2 is a side view of a main part when the inside lever is moved in an open direction.

FIG. 3 is a side view of the main part when the double action / override operation is disabled.

FIG. 4 is a front view of the door lock device when the locking / unlocking lever is at an unlocking position.

FIG. 5 is a front view of the door lock device when the locking / unlocking lever is in a locking position.

FIG. 6 is a front view of a main part when the second sub lever is swinging and moving.

FIG. 7 is a front view of a main part when a double action / override operation is performed.

FIG. 8 is a longitudinal sectional front view along the line VIII-VIII in FIG. 1;

FIG. 9 is a cross-sectional view along the line IX-IX in FIG.

FIG. 10 is a vertical sectional side view along the line XX in FIG. 5;

FIG. 11 is a vertical sectional view taken along the line XI-XI in FIG. 10;

[Explanation of symbols]

 (1) Meshing mechanism body (1a) Check part (2) Base plate (2a) Mounting piece (3) Guide hole (3a) Upper guide hole (3b) Lower guide hole (3c) Check part (4) Actuator (4a) Housing (4b) (4c) shaft (5) First motor (6) Second motor (7) Knob lever (7a) Engagement part (7b) Slit (7c) Arm (8) Sector gear (9) Output lever (10) Sector gear (11) Key lever (12) Locking / unlocking lever (12a) Shaft (12b) Connection hole (12c) Elastic piece (12d) Projection (13) Open lever (13a) Engagement part (14) Engagement member Shaft (15) Outside lever (15a) Shaft (15b) Abutment (16) First sub-lever (16a) Slot (16b) Shaft (16c) Housing (17) Second sub-lever (17a) Release (17b) Contact part (17c) Bend piece (17d) Stopper (18) Spring (19) Inside lever (19a) Missing part (19b) Engagement part (19c) Cable connection hole (20) Shaft (21) Operation Lever (21a) Release part (21b) Linking part (21c) Slot (22) Shaft (23) Linking lever (23a) Lower part (23b) Arm (24) Off Lever (24a) projections (24b) elastic piece (24c) shank (24d) base (25) spring

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masakazu Akahori 1-14-7 Maruyama, Isogo-ku, Yokohama-shi F-term in Oi Works, Ltd. (reference) 2E250 AA21 HH02 JJ34 JJ37 JJ42 KK02 LL01 NN01 PP02 PP13 QQ03 RR13 RR25 RR44

Claims (4)

[Claims] A base plate fixed to a door; an open lever mounted on the base plate and moved in an opening direction to release a meshing state between the door and a vehicle body; pivotally attached to the base plate; An inside lever that moves in the open direction by operating a handle provided on the vehicle interior side of the door, and is pivotally attached to the base plate coaxially with the inside lever, and is moved in the open direction by the inside lever. An operating lever for moving the open lever in the open direction; and a projection provided at one end is linked to the inside lever and the operating lever so as to be movable in an eccentric direction with respect to a common axis of the inside lever and the operating lever. The protrusion is formed between the inside lever and the operation lever. By engaging with an engaging portion provided on one of the shifts, an unlocking position for transmitting the movement of the inside lever in the open direction to the operating lever, and the protrusion swings with respect to the engaging portion, The inside lever can be moved to a locked position where the movement of the inside lever in the opening direction is not transmitted to the operating lever, and the shaft provided at the other end is fitted into a guide hole provided in the base plate, and the unlocked position And a switching lever that is movable between a lock position and a lock position, and that is rotatable about the shaft portion. 2. A guide hole is arranged on one side and an engaging portion is arranged on the other side of a common axis of the inside lever and the operating lever, and the switching lever is formed in a substantially C shape so as to bypass the axis. An automobile door lock device according to claim 1. 3. An elasticity that elastically engages with an uneven check portion provided on a base plate in the vicinity of a shaft portion of a switching lever to stably hold the switching lever between an unlocked position and a locked position. 3. The vehicle door lock device according to claim 1, further comprising a piece. 4. A switching lever shaft is pivotally mounted on a free end of an output lever of an actuator mounted on a base plate and operable by operating an appropriate operation switch, and the switching lever is released by operating the actuator. The vehicle door lock device according to any one of claims 1 to 3, wherein the door lock device is movable between a lock position and a lock position.